How To Install libqt4-declarative on Ubuntu 18.04
Introduction
In this tutorial we learn how to install libqt4-declarative on Ubuntu 18.04.
What is libqt4-declarative
libqt4-declarative is:
Qt is a cross-platform C++ application framework. Qt’s primary feature is its rich set of widgets that provide standard GUI functionality.
The Qt Declarative module provides a declarative framework for building highly dynamic, custom user interfaces.
There are three methods to install libqt4-declarative on Ubuntu 18.04. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.
Install libqt4-declarative Using apt-get
Update apt database with apt-get using the following command.
sudo apt-get update
After updating apt database, We can install libqt4-declarative using apt-get by running the following command:
sudo apt-get -y install libqt4-declarative
Install libqt4-declarative Using apt
Update apt database with apt using the following command.
sudo apt update
After updating apt database, We can install libqt4-declarative using apt by running the following command:
sudo apt -y install libqt4-declarative
Install libqt4-declarative Using aptitude
If you want to follow this method, you might need to install aptitude first since aptitude is usually not installed by default on Ubuntu. Update apt database with aptitude using the following command.
sudo aptitude update
After updating apt database, We can install libqt4-declarative using aptitude by running the following command:
sudo aptitude -y install libqt4-declarative
How To Uninstall libqt4-declarative on Ubuntu 18.04
To uninstall only the libqt4-declarative package we can use the following command:
sudo apt-get remove libqt4-declarative
Uninstall libqt4-declarative And Its Dependencies
To uninstall libqt4-declarative and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:
sudo apt-get -y autoremove libqt4-declarative
Remove libqt4-declarative Configurations and Data
To remove libqt4-declarative configuration and data from Ubuntu 18.04 we can use the following command:
sudo apt-get -y purge libqt4-declarative
Remove libqt4-declarative configuration, data, and all of its dependencies
We can use the following command to remove libqt4-declarative configurations, data and all of its dependencies, we can use the following command:
sudo apt-get -y autoremove --purge libqt4-declarative
References
Summary
In this tutorial we learn how to install libqt4-declarative package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.
